When building a modern web experience, it's important to measure, optimice, and monitor if you're to guet fast and stay fast. Performance plays a significant role in the success of any online venture, as high performing sites engague and retain users better than poorly performing ones.

Sites should focus on optimicing for user-centric happiness metrics. Tools lique Lighthouse (baqued into web.dev!) highlight these metrics and help you taque the right steps toward improving your performance. To stay fast, set and enforce performance budguets to help your team worc within the constrains needed to continue loading fast and keeping users happy after your site has launched.